Pipe connection



April 10, 1928.

Y H. W; CLARKE PIPE CONNECTION Filed June 28, 1926 y Patented Apr.y 10,1.928.

UNITED lSTA'IES PATENT OFFICE.'

HARRY W. CLARKE', 0F LON GVIEW, WASHINGTON.

PIPE CONNECTION.

Application led June-28, 1926. Serial No. 118,949.

y This invention relates generally to the pipe iitters art, andparticularly to a special form of connection between pipes, or betweenpipes and fittings.

The first object of this invention is to provide an exceedingly simpleand efficient form of pipe connection whereby pipes may be securely andpermanently joined together without the necessity of first formingthreads thereon. y

The second object is to so form theconnection that the exact length ofpipes `being joined together is of much less importance than isordinarily the case Where threads are employed.

The third object is to make it possible for a pipe so connected toadjust itself for endwise expansion and contraction.

The fourth object is to form a pipe connection which will notdeteriorate under vibration, or render` it less eflicient, due to thefact that pipes are often out of round.

. The fiftlrobject is to so construct the connection that it is easilyadaptable for use in connection with valves and pipe fittings, and

especially for the y'purpose offorming ,ref

ducing couplings.

The sixth object is to so construct the connection that only ordinaryskill is required to properly install same, and that the amount of timeand physical effort required to perform this operation are relativelysmall.

These, and other objects, will become more apparent from thespecification following as f illustrated in the accompanying drawing, in

which:

Figure 1 is a longitudinal section through a representative form ofcoupling showing two methods of applying this device. Figure 2 is an endelevation of a compression ring preferably employed therein. Figure 3 isa side elevation of Figure 2 with a portion thereof broken away insection. Figure 4 is an end elevation of the soft metal packing sleeveof which Figure 5 is a side elevation with a portion thereof broken awayin section.

Similar numbers of reference refer to the same partsthroughout theseveral views.

Referring in detail to the drawing, the device itself consists of a bodymember 10 preferably provided with a hexagonal center 11, forconvenience in applying a wrench. In

pling for lthe pipes 14 and 15. In the end 12 is inserted the pipe 14,around which' is placed the sleeve 16 preferably split, as indicated,although not necessarily usually formed of a soft lead.

The compression ring 17 is provided with an outwardly turned flange 18at one end and an inwardly turned flange 19 at the other end. A gland 20is counterbored to receive the gland 19 and to bear against the flange18. The nut 20 is also provlded with a hexagonal end 21, for conveniencein turning.

The end 13 of the body 10 is provided with a. packing sleeye 22 and agland 23 which arc similar to those previously described, except that inthis case the compression ring is oiilitted.

`The operation of the device is as follows; l Vhen desiring to connect,for example, the.

pipes 14 and 15'1it is only necessary to move their ends apartI and slipthe respectivey glands 21 and 23, the compression ring 17 and thepacking sleeves 16 and 22 into positio-n on the pipes The 'end 13 isthen slipped over .the pipe l5, after which the pipes are brought intoalignment and the fitting 10 is slipped around the larger pipe 14 untilit strikes the central shoulder 24. The packing 16, for example, withits surrounding compression ring 17 is then slipped into the end 12,after which the threaded gland 2() is screwed into place with sufficientforce to How the metal of the sleeve 16 into every cavity around thepipe, and even into the clearance between the pipe 14 and the interiorof the member 10.

The object of the compression ring is to reduce the tendency of' themember 20 to rotate the packing, it being much more' preferable to havethe slippage between the hard- 'er members 17 and 20.

The result of this action is a completely tight joint, due to the factthat the lead `has flowed into a perfect contact with the relativelyrough exterior of the pipe 14.

By'- omitting vthe sleeve 17, as illustrated, in the smaller end 13 thecost is somewhat reduced, and this form can be employed where smallersizes of pipe and lower pressures are employed, but on the larger sizes'so, and is 00 and for pressures such as would be carried for dutypurposes, the compression ring is the'form illustrated, one end 12 ofthe body* essential.

l() isY somewhat larger than the end 13, illustrating a convenient formof'reducing couto provide the ordinary type of sliding gland nc Forcertain classes of work it is preferable to vwhich power is ap'cplied bymeans of bolts, as is well understoo I am aware that many forms of pipeconnections have been invented in the past; I lgherefore do not claimsuch devices broadly, but I do intend to. cover all such forms andmodifications as fall fairly within the appended claims.

I claim:

1. A pipe connection having, in combination, a body member provided witha threaded recess through which a pipe can be passed;

a lead cylindrical sleeve adapted to he slipped over said pipe into saidrecess; a cylindrical compression sleeve having its outer end inturnedbehind said flead sleeve and its inner end out-turned toward the threadsin said recess; and ai gland adapted Vto loosely receive said pipe andto be threaded into said recess, said gland having a counterbore formedtherein whose inner end engages the inturned edge of said compressionsleeve and whose outer end engages the out-turned -edge of said sleevein a manner to flow the and its surrounding connection and'betweenlsoaid pipe and the threads of said body mem- 2.V A pipe connection,consisting of a body member having formed in each end thereof a recessadapted to looselyreceive the end of an unthreaded pipe; and ed recessoutside of the first mentioned recess; a lead sleeve adapted to surroundsaid pipe and to be slipped into the space between the threads of saidrecess and the outside of said pipe; a gland adapted to loosely receivesaid pipe and to be screwed into said threaded recessand said glandhaving a counterbored end; and a compression sleeve within saidcounterbored end having one end inturned behind said lead sleeve and theother endout-turned against the end of said gland adapted to expand saidlead sleeve against a pipe and into the threads of said body member.

HARRY W. CLARKE.

a larger thread-

